Significant Accounting Policies | (3) Significant Accounting Policies Principles of Consolidation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP. The consolidated financial statements include the accounts of the Partnership and its subsidiaries. All intercompany accounts and transactions have been eliminated. As the acquisition of Enviva Pellets Cottondale and the Southampton Drop-Down represented transfers of entities under common control, the consolidated financial statements and related information presented herein have been recast to include the historical results of Enviva Pellets Cottondale effective January 5, 2015, the date the Partnership's sponsor acquired Acquisition II, and Enviva Pellets Southampton effective April 9, 2015, the date Enviva Pellets Southampton was originally conveyed to Hancock JV. Certain amounts for the years ended December 31, 2014 and 2013 have been reclassified to conform to the current presentation. Common Control Transactions Assets and businesses acquired from the Partnership's sponsor and its subsidiaries are accounted for as common control transactions whereby the net assets acquired are combined at their historical costs and financial statements are adjusted retrospectively to reflect the transaction as if it occurred on the earliest date during which the entities were under common control. If any recognized consideration transferred in such a transaction exceeds the carrying value of the net assets acquired, the excess is treated as a capital distribution to the Partnership's General Partner. If the carrying value of the net assets acquired exceeds any recognized consideration transferred including, if applicable, the fair value of any limited partner units issued, then that excess is treated as a capital contribution from the General Partner. To the extent that such transactions require prior periods to be recast, historical net equity amounts prior to the transaction date are attributed to the "General Partner." Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the Partnership's consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Segment and Geographic Information Operating segments are defined as components of an enterprise about which discrete financial information is available and regularly reviewed by the chief operating decision maker in deciding how to allocate resources and in assessing performance. The Partnership views its operations and manages its business as one operating segment. All long-lived assets of the Partnership are located in the United States. Other Comprehensive Income (Loss) Comprehensive income (loss) includes net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) refers to revenue, expenses, gains and losses that under GAAP are recorded as an element of partners' capital but are excluded from net income (loss). The Partnership had no components of other comprehensive income (loss) for the years ended December 31, 2015, 2014 and 2013. Net Income per Limited Partner Unit The Partnership computes net income per unit using the two-class method as the Partnership has more than one class of participating securities, including common units, subordinated units, certain equity based-compensation awards and IDRs. The Partnership bases its calculation of net income per unit on the weighted-average number of common and subordinated limited partner units outstanding during the period. Diluted net income per unit includes the effects of potentially dilutive time-based and performance-based phantom units on our common units. The General Partner owns a non-economic interest in the Partnership, which does not entitle it to receive cash distributions, but owns all of the outstanding IDRs as of December 31, 2015. Pursuant to the partnership agreement, IDRs represent the right to receive increasing percentages (ranging from 15% to 50%) of quarterly distributions from operating surplus after the minimum quarterly distribution and certain target distribution levels have been achieved. No amounts were paid to holders of the IDRs in 2015. Net income per unit applicable to limited partners (including the holder of subordinated units) is computed by dividing limited partners' interest in net income by the weighted-average number of outstanding common and subordinated units. Income Taxes The Partnership and sponsor are pass-through entities and are not considered taxable entities for federal income tax purposes. Therefore, there is not a provision for U.S. federal and most state income taxes in the accompanying consolidated financial statements. The Partnership's net income or loss is allocated to its partners in accordance with the partnership agreement. The partners are taxed individually on their share of the Partnership's earnings. At December 31, 2015 and December 31, 2014, the Partnership and sponsor did not have any liabilities for uncertain tax position or gross unrecognized tax benefit. Some states impose franchise and capital taxes on the Partnership. Such taxes are not material to the consolidated financial statements. Income tax expense for the year ended December 31, 2015 includes expense incurred by Acquisition II prior to converting to a nontaxable entity. Cash and Cash Equivalents Cash and cash equivalents consist of short-term, highly liquid investments readily convertible into cash with an original maturity of three months or less. Restricted Cash The Predecessor funded a restricted debt service reserve account in connection with the Prior Senior Secured Credit Facilities. The restricted debt service reserve account was released as a result of the repayment in full of the Prior Senior Secured Credit Facilities on April 9, 2015. Accounts Receivable Accounts receivable are recorded at the invoiced amount and do not bear interest. In establishing an allowance for doubtful accounts, management considers historical losses adjusted to take into account current market conditions and customers' financial condition, the amount of receivables in dispute, the current receivables aging and current payment patterns. The Partnership reviews the aging of accounts receivables monthly. Past due balances over 90 days and over a specified amount are reviewed individually for collectability. There were no bad debt write-offs during the years ended December 31, 2015, 2014 and 2013. The Partnership has an allowance for doubtful accounts in the amount of $85.4 and $61.4 as of December 31, 2015 and 2014, respectively. The Partnership does not have any off-balance-sheet credit exposure related to its customers. Inventories Inventories consist of raw materials, work-in-progress, consumable tooling and finished goods. Fixed production overhead, including related depreciation expense, is allocated to inventory based on the normal capacity of the facilities. To the extent the Partnership does not achieve normal production levels, the Partnership charges such under absorption of fixed overhead to operations. Consumable tooling consists of spare parts and tooling to be consumed in the production process. Spare parts are expensed as used and tooling items are amortized to expense over an estimated service life. Inventories are stated at the lower of cost or market using the first-in, first-out method ("FIFO") for all inventories. Revenue Recognition The Partnership primarily earns revenue by supplying wood pellets to customers under long-term, U.S. dollar-denominated contracts (also referred to as "off-take" contracts). The Partnership refers to the structure of the contracts as "take-or-pay" because they include a firm obligation to take a fixed quantity of product at a stated price and provisions that ensure the Partnership will be made whole in the case of the customer's failure to accept all or a part of the contracted volumes or for termination by the customer. Each contract defines the annual volume of wood pellets that the customer is required to purchase and the Partnership is required to sell, the fixed price per metric ton for product satisfying a base net calorific value and other technical specifications, and, in some instances, provides for price adjustments for actual product specification and changes in underlying costs. Revenues from the sale of wood pellets are recognized when the goods are shipped, title passes, the sales price to the customer is fixed and collectability is reasonably assured. Depending on the specific off-take contract, shipping terms are either Cost, Insurance and Freight ("CIF") or Free on Board ("FOB"). Under a CIF contract, the Partnership procures and pays for shipping costs, which include insurance and all other charges, up to the port of destination for the customer. These costs are included in the price to the customer and, as such, are included in revenue and cost of goods sold. Under an FOB contract, the customer is directly responsible for shipping costs. In some cases, the Partnership may purchase shipments of product from a third-party supplier and resell them in back-to-back transactions that immediately transfer title and risk of loss to the ultimate purchaser. Thus, the revenue from these transactions is recorded net of costs paid to the third-party supplier. The Partnership records this revenue as "Other revenue." In instances when a customer requests the cancellation, deferral or acceleration of a shipment, the customer may pay a fee, including reimbursement of any incremental costs incurred by the Partnership, which is included in revenue. Cost of Goods Sold Cost of goods sold includes the costs to produce and deliver wood pellets to customers. Raw material, production and distribution costs associated with delivering wood pellets to the ports and third-party wood pellet purchase costs are capitalized as a component of inventory. Fixed production overhead, including the related depreciation expense, is allocated to inventory based on the normal capacity of the facilities. These costs are reflected in cost of goods sold when inventory is sold. Distribution costs associated with shipping wood pellets to customers and amortization are expensed as incurred. Inventory is recorded using FIFO, which requires the use of judgment and estimates. Given the nature of the inventory, the calculation of cost of goods sold is based on estimates used in the valuation of the FIFO inventory and in determining the specific composition of inventory that is sold to each customer. Additionally, the purchase price of acquired customer contracts that were recorded as intangible assets are amortized as deliveries are made during the contract term. Derivative Instruments The Predecessor used derivative financial instruments to manage its exposure to fluctuations in interest rates on long-term debt as required per the terms of the Prior Senior Secured Credit Facilities (see Note 10, Long-Term Debt and Capital Lease Obligations ). The Partnership does not hold or issue derivative financial instruments for trading or speculative purposes. The Predecessor accounted for the interest rate swaps by recognizing all derivative financial instruments on the consolidated balance sheets at fair value. The Predecessor's interest rate swap agreements were not designated as hedges; therefore, the gain or loss was recognized in the consolidated statements of operations in interest expense. In connection with the repayment of the Prior Senior Secured Credit Facilities in April 2015 (see Note 10, Long-Term Debt and Capital Lease Obligations ), the Predecessor terminated the interest rate swaps and paid a termination fee of $0.1 million. The Partnership does not currently hold any interest rate swaps or derivative financial instruments. Property, Plant and Equipment Property, plant and equipment are recorded at cost, which includes the fair values of assets acquired. Equipment under capital leases are stated at the present value of minimum lease payments. Useful lives of assets are based on historical experience and are adjusted when changes in the expected physical life of the asset, its planned use, technological advances, or other factors show that a different life would be more appropriate. Changes in useful lives are recognized prospectively. Depreciation and amortization are calculated using the straight-line method based on the estimated useful lives of the related assets. Plant and equipment held under capital leases are amortized on a straight-line basis over the shorter of the lease term or estimated useful life of the asset. Construction in progress primarily represents expenditures for the development and expansion of facilities. Capitalized interest cost and all direct costs, which include equipment and engineering costs related to the development and expansion of facilities, are capitalized as construction in progress. Depreciation is not recognized for amounts in construction in progress. Normal repairs and maintenance costs are expensed as incurred. Amounts incurred that extend an asset's useful life, increase its productivity or add production capacity are capitalized. Direct costs, such as outside labor, materials, internal payroll and benefit costs, incurred during the construction of a new plant are capitalized; indirect costs are not capitalized. The principal useful lives are as follows: Asset Estimated useful life Land improvements 15 to 17 years Buildings 5 to 40 years Machinery and equipment 2 to 25 years Vehicles 5 to 6 years Furniture and office equipment 2 to 10 years Leasehold improvements Shorter of estimated useful life or lease term, generally 10 years Costs and accumulated depreciation applicable to assets retired or sold are removed from the accounts, and any resulting gain or loss is included in the consolidated statement of operations. Debt Issuance Costs and Original Issue Discount Debt issuance costs represent legal fees and other direct expenses associated with securing the Partnership's credit agreements and are capitalized on the consolidated balance sheets as other long-term assets. Original issue discounts are recorded on the consolidated balance sheets within the carrying amount of long-term debt. Debt issuance costs and original issue discount are amortized over the term of the related debt using straight line amortization, which approximates the effective interest rate method. The Partnership and the Predecessor primarily incurred debt issuance costs and original issue discount in connection with the Original Credit Facilities, Incremental Credit Facilities and Prior Senior Secured Credit Facilities, respectively (see Note 10, Long-Term Debt and Capital Lease Obligations ). Debt issuance costs, net at December 31, 2015 and 2014, were $5.6 million and $3.6 million, respectively. Gains or losses on debt extinguishment include any associated unamortized debt issuance costs and original issue discount. Capitalized Interest The Predecessor capitalized interest cost incurred on debt during the construction of major projects. A reconciliation of total interest cost to interest expense as reported in the consolidated statements of operations for the years ended December 31, 2015, 2014 and 2013 is as follows: 2015 2014 2013 Interest cost capitalized to construction in progress $ — $ — $ Interest cost, including related party, charged to operations ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total interest cost $ $ $ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill Goodwill represents the purchase price paid for acquired businesses in excess of the identifiable acquired assets and assumed liabilities. Goodwill is not amortized, but is tested for impairment annually and whenever an event occurs or circumstances change such that it is more likely than not that the fair value of the reporting unit is less than its carrying amounts. At December 31, 2015 and 2014, the Partnership has identified one reporting unit which corresponded to the Partnership's one segment and has selected the fourth fiscal quarter to perform its annual goodwill impairment test. The Partnership first performs a qualitative assessment to determine whether it is necessary to perform quantitative testing. If this initial qualitative assessment indicates that it is more likely than not that the fair value of a reporting unit is more than its carrying value, goodwill is not considered impaired and the Partnership is not required to perform the two-step impairment test. Qualitative factors considered in this assessment include (i) macroeconomic conditions, (ii) past, current and projected future financial performance, (iii) industry and market considerations, (iv) changes in the costs of raw materials, fuel and labor and (v) entity-specific factors such as changes in management or customer base. If the results of the qualitative assessment indicate that it is more likely than not that goodwill is impaired, the Partnership will perform a two-step impairment test. Under the first step, the fair value of the reporting unit is compared with its carrying value (including goodwill). If the fair value of the reporting unit exceeds its carrying value, step two does not need to be performed. If the fair value of the reporting unit is less than its carrying value, an indication of goodwill impairment exists for the reporting unit and the entity must perform step two of the impairment test (measurement). Under step two, an impairment loss is recognized for any excess of the carrying amount of the reporting unit's goodwill over the implied fair value of that goodwill. For the years ended December 31, 2015 and 2014, the Partnership applied the qualitative test and determined that it was more likely than not that the estimated fair value of the reporting unit substantially exceeded the related carrying value, and, accordingly, was not required to apply the two-step impairment test. The Partnership did not record any goodwill impairment for the years ended December 31, 2015 and 2014 (see Note 9, Goodwill and Other Intangible Assets ). In making this qualitative analysis for the years ended December 31, 2015, and 2014, the Partnership evaluated the following economic factors: · The Partnership's consolidated financial results reflect continued improved financial performance in 2015 compared to 2014 as reflected by increases in revenue and metric tons sold, as well as the generation of positive net income in 2015 and 2014. · The Partnership continued its expansion of production capacity with the acquisition of Enviva Pellets Cottondale in April 2015 and the acquisition of Enviva Pellets Southampton in December 2015. · The Partnership now benefits from six production plants located in the Southeastern U.S. · In May 2015, the Partnership received proceeds of approximately $215.1 million from the IPO and its market capitalization exceeds the carrying value of its net assets as of December 31, 2015. · The Partnership began deliveries under two new customer contracts in 2013. As a result of the Southampton Drop-Down, the Partnership acquired a new ten-year customer contract which will commence in 2016 and ramp to 500,000 MTPY. · The Partnership has had no cancellations of contracts. Intangible Assets In April 2015, the sponsor contributed net assets to the Partnership associated with the acquisition of Green Circle in January 2015, which included intangible assets related to favorable customer contracts (see Note 1, Business and Basis of Presentation ). The Partnership also recorded payments made to acquire a six-year wood pellet off-take contract with a European utility in 2010 as an intangible asset. These costs are recoverable through the future revenue streams generated from the customer contracts and are closely related to the revenue from the customer contracts. These costs are recorded as an asset and charged to expense as the revenue is recognized (see Note 9, Goodwill and Other Intangible Assets ). All other costs, such as general and administrative expenses and costs associated with the negotiation of a contract that is not consummated, are charged to expense as incurred. Deferred Issuance Costs Deferred issuance costs primarily consist of legal, accounting, printing and other fees relating to the IPO. These costs were offset against the proceeds of the IPO. As of December 31, 2015 and 2014, the Partnership had $0 and $4.1 million of deferred issuance costs, respectively. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consist primarily of prepaid insurance. Other Long-Term Assets Other long-term assets primarily consist of a deposit made in accordance with the terms of a new customer contract and security deposits for utilities. Advertising Costs incurred related to advertising of the Partnership's products and services are expensed as incurred. Unit-Based Compensation Employees, consultants and directors of the General Partner and any of its affiliates are eligible to receive awards under the Enviva Partners, LP Long-Term Incentive Plan. For accounting purposes, units granted to employees of the Partnership's affiliates are treated as if they are distributed by the Partnership. In May, June and July 2015, phantom units in tandem with corresponding distribution equivalent rights ("DERs") were granted to employees of Enviva Management Company, LLC who provide services to the Partnership and to certain non-employee directors of the General Partner. These awards vest subject to the satisfaction of service requirements or the achievement of certain performance goals, following which common units in the Partnership will be delivered to the holder of the phantom units. Affiliate entities recognize compensation expense for the phantom units awarded to their employees and a portion of that expense is allocated to the Partnership (see Note 11, Related Party Transactions-Management Services Agreement and Note 15, Equity-Based Awards ). The Partnership's outstanding unit-based awards do not have a cash option and are classified as equity on the Partnership's consolidated balance sheets. The Partnership also recognizes compensation expense for units awarded to non-employee directors. Impairment of Long-Lived Assets Long-lived assets, such as property, plant and equipment and amortizable intangible assets, are tested for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require that a long-lived asset or asset group be tested for possible impairment, the Partnership first compares undiscounted cash flows expected to be generated by that asset or asset group to such asset or asset group's carrying value. If the carrying value of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying value exceeds its fair value. Fair value is determined through various valuation techniques including discounted cash flow models, quoted market values and third-party independent appraisals, as considered necessary. The Partnership did not record any impairments for the years ended December 31, 2015, 2014 and 2013 (see Note 9, Goodwill and Other Intangible Assets ). Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred. Fair Value Measurements The Partnership applies authoritative accounting guidance for fair value measurements of financial and nonfinancial assets and liabilities. The Partnership uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. The Partnership determines fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels: · Level 1 Inputs: Unadjusted, quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date. · Level 2 Inputs: Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability. · Level 3 Inputs: Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date. Recent and Pending Accounting Pronouncements On February 25, 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-02, Leases . Under the new pronouncement, an entity is required to recognize assets and liabilities arising from a lease for all leases with a maximum possible term of more than 12 months. A lessee is required to recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the leased asset (the underlying asset) for the lease term. For most leases of assets other than property (for example, equipment, aircraft, cars, trucks), a lessee would recognize a right-of-use asset and a lease liability, initially measured at the present value of lease payments and recognize the unwinding of the discount on the lease liability as interest separately from the amortization of the right-of-use asset. For most leases of property (that is, land and/or a building or part of a building), a lessee would recognize a right-of-use asset and a lease liability, initially measured at the present value of lease payments and recognize a single lease cost, combining the unwinding of the discount on the lease liability with the amortization of the right-of-use asset, on a straight-line basis. The new guidance is effective for public entities for fiscal year and interim periods within those fiscal years beginning after December 15, 2018. Upon adoption, a lessee and a lessor would recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. Early adoption is permitted. The Partnership is in the process of evaluating the impact of adoption on its consolidated financial statements. In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments , to amend the guidance for amounts that are adjusted in a merger or acquisition. The standard eliminates the requirement for an acquirer to retrospectively adjust the financial statements for measurement period adjustments that occur in periods after a business combination is consummated. The ASU is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. The Partnership does not expect adoption to have a material effect on the consolidated financial statements. In July 2015, the FASB issued ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory . The standard simplifies the subsequent measurement of inventory by requiring inventory to be measured at the lower of cost and net realizable value for entities using the first-in, first-out method of valuing inventory. ASU No. 2015-11 eliminates other measures required by current guidance to determine net realizable value. ASU No. 2015-11 is effective for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years, and early adoption is permitted. The Partnership does not expect adoption to have a material effect on the carrying value of inventory. In April 2015, the FASB issued ASU No. 2015-06, Earnings Per Share (Topic 260)—Effects on Historical Earnings per Unit of Master Limited Partnership Dropdown Transactions—a consensus of the FASB Emerging Issues Task Force (EITF) . The amendments in ASU No. 2015-06 apply to master limited partnerships subject to the Master Limited Partnerships Subsections of Topic 260 that receive net assets through a dropdown transaction that is accounted for under the Transactions Between Entities Under Common Control Subsections of Subtopic 805-50, Business Combinations—Related Issues. When a general partner transfers, or "drops down," net assets to a master limited partnership and that transaction is accounted for as a transaction between entities under common control, the statements of operations of the master limited partnership are adjusted retrospectively to reflect the dropdown transaction as if it occurred on the earliest date during which the entities were under common control. The amendments in ASU No. 2015-06 specify that for purposes of calculating historical earnings per unit under the two-class method, the earnings (losses) of a transferred business before the date of a dropdown transaction should be allocated entirely to the general partner. In that circumstance, the previously reported earnings per unit of the limited partners (which is typically the earnings per unit measure presented in the financial statements) would not change as a result of the dropdown transaction. Qualitative disclosures about how the rights to the earnings (losses) differ before and after the dropdown transaction occurs for purposes of computing earnings per unit under the two-class method also are required. The amendments in ASU No. 2015-06 are effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted. The amendments in ASU No. 2015-06 should be applied retrospectively for all financial statements presented. The Partnership has evaluated this guidance and determined it is consistent with its policy and historical presentation of earnings per unit. In April 2015, the FASB issued ASU No. 2015-03, Interest-Imputation of Interest (Topic 835-30): Simplifying the Presentation of Debt Issuance Costs . ASU No. 2015-03 requires the presentation of debt issuance costs in the balance sheet as a reduction from the related debt liability rather than as an asset. The amortization of such costs will continue to be reported as interest expense. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and allows early adoption for financial statements that have not been previously issued. The update requires retrospective application upon adoption. Upon adoption, the Partnership expects to reclassify amounts included as debt issuance costs within total assets on the consolidated balance sheet to a reduction of long-term debt within total liabilities on the consolidated balance sheet for all periods presented. The adoption is not expected to have an impact on the periodic amount amortized. In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis . The new standard reduces the number of consolidation models and simplifies their application. The amendments in ASU No. 2015-02 are intended to improve targeted areas of consolidation guidance for legal entities such as limited partnerships and similar legal entities. The amendments simplify the consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. Specifically, the amendments (1) eliminate the presumption that a general partner should consolidate a limited partnership, (2) eliminate the indefinite deferral of FASB Statement No. 167, thereby reducing the number of variable interest entity ("VIE") consolidation models from four to two (including the limited partnership consolidation model), (3) clarify when fees paid to a decision maker should be a factor to include in the consolidation of VIEs, (4) amend the guidance for assessing how related party relationshi |